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Author Topic: [CLOSED] batch #32 0.65 btc per Blade, 49-port HUBS .30 or less  (Read 55158 times)
CanaryInTheMine
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October 28, 2013, 05:08:25 PM
 #281

The hubs have arrived.  ready to ship out.  They are approximately 10x6 inches in size.  definitely made so that you could stack them and create very interesting "rigs", but to stack them you'll need to visit a local RadioShack etc... to get necessary parts.

one order of 50 USBs + a Hub fits into a Medium Flat Rate box.  Or it fits a Region B box if that is cheaper for you (weight: about 4 pounds).  

for those with multiple batches of 50, I'd have to work with you on the label requirements, so please PM me (ofcourse if you don't want to bother, you can just email a medium box label for each block of 50 USBs + hub).

Start with this:



Next add some USB miners:



I used this PSU which I picked up at a local Frys under $50: ( 30A on 5V ATX)



Connected and all 49 powered up! :



And we're hashing:

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October 28, 2013, 06:03:13 PM
 #282

any price cuts coming to be more in line with avalons price of 4btc for 60ghs?
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October 28, 2013, 06:07:50 PM
 #283

Yes these would be a great deal if you could drop the price a bit.
They might be profitable to re-sell at this price but with mining your talking about a chance you might not even ROI, IMO.
Could you drop the price if I opted for 50 miners without a hub? (I have the intent to re-sell them, not mine, thus a hub is useless to me)
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October 28, 2013, 06:10:32 PM
 #284

i was actually referring to blades pricing...
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October 28, 2013, 07:32:52 PM
 #285

I am not sure this is the best place for this discussion, but it is here so what the heck.

Found that this:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371004 is available at a local Frys for under $50.  I picked one up to test with the hub Monday.

ATX 5V at 30 Amps should have no issues powering up the 49 port hub.  Grin

Any idea what gauge the wires are? I have a 5v30a ps but the AWGis 21.. im being told too thin of  a wire =/
I doubt that is correct.  21 AWG according to the table I just looked at will handle 49 amps, but not sure at which voltage...
AWG is used for solid wires, chances are good that the multitude of wires coming out of that PSU over to the ATX connector is NOT solid but stranded, this the AWG measure isn't applicable...
Maybe there are some electricians here who can chime in...
ATX power supplies will typically use 16 or 18 AWG wire.  Better ones use 16AWG.  It is always stranded.  I believe the ATX spec calls for 16.  I am not sure what table you are looking at but 21 AWG can't handle 49 amps.  More like 5 or 6.  You can ignore the "free air" column if there is one and look at the "enclosed" or "bundle" column.  16 AWG is good for 10 or 12 amps.  The insulation is what determines the maximum voltage, not the wire size.  The wire on a random ATX power supply I just looked at is rated at 300v.

I hope these hubs have an internal DC-DC converter and don't use the 5V rail exclusively.  This is unlikely due to cost constraints.
I hear they don't which is mixed blessing.  The good news is it lets you push as many amps as the connector / traces will carry by providing a bigger power supply.  The better news is it doesn't limit the power consumption the capacity of the DC-DC converter. 

The bad news is the ATX connector limits the current to 8 amps per pin with 16 AWG wire ( http://www.molex.com/pdm_docs/ps/PS-45750-001.pdf ) and there are only 5 pins for the 5v rail making the total you can reasonably expect before you risk melting the connector 40 amps.  Google "tyan tiger mp melted connector" if you want to read stories about what happens if you push too much.  http://imageshack.us/photo/my-images/179/p10101811pf.jpg/ for those who just want the picture.

The harsh reality is there are few modern ATX power supplies with more than 20 amps on the 5V rail and precious few with 30 or more.  There are a few like the antec basiq linked above but you have to check the specifications very carefully.
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October 28, 2013, 08:42:05 PM
 #286

I am not sure this is the best place for this discussion, but it is here so what the heck.

Found that this:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371004 is available at a local Frys for under $50.  I picked one up to test with the hub Monday.

ATX 5V at 30 Amps should have no issues powering up the 49 port hub.  Grin

Any idea what gauge the wires are? I have a 5v30a ps but the AWGis 21.. im being told too thin of  a wire =/
I doubt that is correct.  21 AWG according to the table I just looked at will handle 49 amps, but not sure at which voltage...
AWG is used for solid wires, chances are good that the multitude of wires coming out of that PSU over to the ATX connector is NOT solid but stranded, this the AWG measure isn't applicable...
Maybe there are some electricians here who can chime in...
ATX power supplies will typically use 16 or 18 AWG wire.  Better ones use 16AWG.  It is always stranded.  I believe the ATX spec calls for 16.  I am not sure what table you are looking at but 21 AWG can't handle 49 amps.  More like 5 or 6.  You can ignore the "free air" column if there is one and look at the "enclosed" or "bundle" column.  16 AWG is good for 10 or 12 amps.  The insulation is what determines the maximum voltage, not the wire size.  The wire on a random ATX power supply I just looked at is rated at 300v.

I hope these hubs have an internal DC-DC converter and don't use the 5V rail exclusively.  This is unlikely due to cost constraints.
I hear they don't which is mixed blessing.  The good news is it lets you push as many amps as the connector / traces will carry by providing a bigger power supply.  The better news is it doesn't limit the power consumption the capacity of the DC-DC converter. 

The bad news is the ATX connector limits the current to 8 amps per pin with 16 AWG wire ( http://www.molex.com/pdm_docs/ps/PS-45750-001.pdf ) and there are only 5 pins for the 5v rail making the total you can reasonably expect before you risk melting the connector 40 amps.  Google "tyan tiger mp melted connector" if you want to read stories about what happens if you push too much.  http://imageshack.us/photo/my-images/179/p10101811pf.jpg/ for those who just want the picture.

The harsh reality is there are few modern ATX power supplies with more than 20 amps on the 5V rail and precious few with 30 or more.  There are a few like the antec basiq linked above but you have to check the specifications very carefully.
thanks for the info!!! much appreciated
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October 28, 2013, 10:56:06 PM
 #287

Dropping off USPS packages.. Wink
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October 29, 2013, 02:19:44 AM
 #288

So I'm considering buying, could you point me at a power supply online somewhere that would be compatible? If the power supply has two 6 pin connectors could it power two of the 49 port hubs at max capacity? hoping you guys would know.
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October 29, 2013, 02:31:40 AM
 #289

So I'm considering buying, could you point me at a power supply online somewhere that would be compatible? If the power supply has two 6 pin connectors could it power two of the 49 port hubs at max capacity? hoping you guys would know.
See my post above please: https://bitcointalk.org/index.php?topic=303640.msg3423344#msg3423344
I got it at a local Frys (they are on ebay as well)

and some pics are here: https://bitcointalk.org/index.php?topic=303640.msg3428585#msg3428585
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October 29, 2013, 07:42:19 PM
 #290

philipma1957 has found this PSU:

http://www.mcmelectronics.com/product/58-12860  
use code   afc909     get a 15% discount  to under  14 bucks plus shipping!

It should be tested Wed/Thur to know for sure, but from the specs, it looks to be a great PSU to power one of these hubs (for the $).


DO NOT BUY ABOVE PSU. it does not work.
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October 29, 2013, 08:35:33 PM
 #291

Here are the stats on the 49 port HUB (pic above) running for 18+ hrs so far:
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October 29, 2013, 08:49:01 PM
 #292

Here are the stats on the 49 port HUB (pic above) running for 18+ hrs so far:

It's interesting that all your erupters show up as the old Emerald (BEE) erupters.  All of mine show up as BES (Block Erupter Sapphire).

No idea if it even makes a difference...

Libertarians:  Diligently plotting to take over the world and leave you alone.
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October 29, 2013, 09:30:16 PM
 #293

Here are the stats on the 49 port HUB (pic above) running for 18+ hrs so far:

It's interesting that all your erupters show up as the old Emerald (BEE) erupters.  All of mine show up as BES (Block Erupter Sapphire).

No idea if it even makes a difference...

Interesting observation... I am running this on bfgminer ver 3.1.3 and using "-S erupter:all" command... one of these 2 things is probably causing them to get the BEE label instead of BES.
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October 30, 2013, 04:40:43 AM
 #294

Today's orders were dropped off at USPS before 7 PM.
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October 30, 2013, 04:44:06 AM
 #295

philipma1957 has found this PSU:

http://www.mcmelectronics.com/product/58-12860  
use code   afc909     get a 15% discount  to under  14 bucks plus shipping!

It should be tested Wed/Thur to know for sure, but from the specs, it looks to be a great PSU to power one of these hubs (for the $).

Mine is due to my home on weds I will test it and post in this thread and in crazy guy's thread.   they had a lot in stock .


 I just went to the link and added 200 to my cart they only have 153 in stock...  So waiting may be smarter  then buying.

 My results should post  in about 20 hours.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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October 30, 2013, 05:28:23 AM
 #296

mackstuart, 10, .35, 1FqQ4epQphzB8b9tJZHgsPMxyZP5WtrVnu

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Chronikka
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October 30, 2013, 05:35:01 AM
 #297

philipma1957 has found this PSU:

http://www.mcmelectronics.com/product/58-12860  
use code   afc909     get a 15% discount  to under  14 bucks plus shipping!

It should be tested Wed/Thur to know for sure, but from the specs, it looks to be a great PSU to power one of these hubs (for the $).

Mine is due to my home on weds I will test it and post in this thread and in crazy guy's thread.   they had a lot in stock .


 I just went to the link and added 200 to my cart they only have 153 in stock...  So waiting may be smarter  then buying.

 My results should post  in about 20 hours.

Thanks!

"The true sign of intelligence is not knowledge but imagination"  -Albert Einstein
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October 30, 2013, 02:42:22 PM
 #298

philipma1957 has found this PSU:

http://www.mcmelectronics.com/product/58-12860  
use code   afc909     get a 15% discount  to under  14 bucks plus shipping!

It should be tested Wed/Thur to know for sure, but from the specs, it looks to be a great PSU to power one of these hubs (for the $).

Mine is due to my home on weds I will test it and post in this thread and in crazy guy's thread.   they had a lot in stock .


 I just went to the link and added 200 to my cart they only have 153 in stock...  So waiting may be smarter  then buying.

 My results should post  in about 20 hours.

Thanks!
  you are welcome  the psu part should arrive  in about 7 hours.  I will post.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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October 30, 2013, 04:53:09 PM
 #299

packing USPS orders... Smiley
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October 30, 2013, 05:59:26 PM
 #300

"out for delivery" looks like delivery will be about 48 hours after payment. maybe BFL needs to make a new hire  Wink


corsair 1200 claims 30 amp on 5v  up to 180 watts between 3 and 5 volts and it's currently only being used on 12 volt so should be set

will update with pictures on delivery

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